In search terminology ,every listing a search engine returns from a search is called a hit.
The term hit is also used to refer to calls on a web server,and it is much misunderstood.Technically,if a web page is called by a remote browser,and it includes three graphics,there are four hits on that server,one for the page,and one for each graphic.Many people and most hit counters use the term hit to mean hits on the web page only,not the calls to graphics or other supporting files that come with the page.When someone quotes figures on hits,be aware that definitions and uses vary,and try to find out what definition was used in producing the figures.